EP2154830A1 - Dispositif de communication en réseau et procédé de communication en réseau - Google Patents

Dispositif de communication en réseau et procédé de communication en réseau Download PDF

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Publication number
EP2154830A1
EP2154830A1 EP08739159A EP08739159A EP2154830A1 EP 2154830 A1 EP2154830 A1 EP 2154830A1 EP 08739159 A EP08739159 A EP 08739159A EP 08739159 A EP08739159 A EP 08739159A EP 2154830 A1 EP2154830 A1 EP 2154830A1
Authority
EP
European Patent Office
Prior art keywords
router
attribute information
network communication
network
wide area
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP08739159A
Other languages
German (de)
English (en)
Other versions
EP2154830B1 (fr
EP2154830A4 (fr
Inventor
Yuki Arai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
D&M Holdings Inc
Original Assignee
D&M Holdings Inc
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Filing date
Publication date
Application filed by D&M Holdings Inc filed Critical D&M Holdings Inc
Publication of EP2154830A1 publication Critical patent/EP2154830A1/fr
Publication of EP2154830A4 publication Critical patent/EP2154830A4/fr
Application granted granted Critical
Publication of EP2154830B1 publication Critical patent/EP2154830B1/fr
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L12/283—Processing of data at an internetworking point of a home automation network
    • H04L12/2834—Switching of information between an external network and a home network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L12/2807—Exchanging configuration information on appliance services in a home automation network
    • H04L12/2809—Exchanging configuration information on appliance services in a home automation network indicating that an appliance service is present in a home automation network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L2012/2847—Home automation networks characterised by the type of home appliance used
    • H04L2012/2849—Audio/video appliances

Definitions

  • the present invention relates to a network communication device connected to a local network, and more particularly, to a network communication device that controls a router by using a Universal Plug and Play (UPnP) protocol.
  • UFP Universal Plug and Play
  • Some routers for connecting a local network and a wide area network are provided with a port forwarding function in order to access a network communication device connected from the wide area network to the local network.
  • the port forwarding function is a function of forwarding a communication packet transmitted to a predetermined port of the router on a wide area network side to a predetermined IP address and port on a local network side.
  • Such a router is used for a system for remotely controlling a household electrical appliance via a network from the outside, an online game machine, and the like.
  • a user can use, for example, a browser on a PC to access a setting screen of the router therefrom and manually set the port forwarding function.
  • a UPnP Internet Gateway Device protocol it is possible for the network communication device to control the router to perform a port forwarding setting. If the router conforms to a UPnP Internet Gateway Device standard, the network communication device can use the UPnP Internet Gateway Device protocol to thereby transmit a command to the router via a network and enable a setting for port forwarding on the router if necessary or disable the setting if unnecessary.
  • Examples of the conventional technology for remotely controlling a household electrical appliance by using the UPnP Internet Gateway Device protocol include a technology disclosed in JP 2007-53530 A .
  • the UPnP Internet Gateway Device protocol has extremely complicated specifications, thereby raising a problem of causing a bug or the like in the router or the network communication device. Further, the UPnP Internet Gateway Device protocol is a protocol that allows interconnections between the network communication devices, and hence the problem of a bug may become obvious in communications between devices interconnected in combination with a specific device.
  • manufacturers of the network communication device are performing connection tests with various routers.
  • many manufacturers of the network communication device publicly announce and recommend, on their website or the like, manufacturer names and product model numbers of routers of which normal operations have been confirmed.
  • connection tests need to be performed also when a new model of router is released or when firmware of the old model is updated, and hence the connection tests to be carried out tend to increase, which raises another problem that sufficient connection tests cannot be performed.
  • An object of the present invention which has been made in order to solve the above-mentioned problems, is to provide a network communication device capable of reducing the number of times a manufacturer of the network communication device performs a connection test with a router.
  • a network communication device which is connected to a local network and is capable of communications with another device connected to a wide area network via a router, includes: router search means for searching for the router connected to the local network; attribute information acquisition means for acquiring attribute information on the router retrieved by the router search means from the router; attribute information storage means for storing the attribute information acquired by the attribute information acquisition means; router control means for controlling the router retrieved by the router search means to perform a port forwarding setting; and attribute information transmission means for transmitting the attribute information stored in the attribute information storage means to a portal server on the wide area network.
  • the attribute information transmission means may transmit, if the port forwarding setting for the router is successful, a flag indicating that the port forwarding setting has been successful to the portal server on the wide area network along with the attribute information.
  • the attribute information transmission means may transmit, if the port forwarding setting for the router is failed, a flag indicating that the port forwarding setting has been failed to the portal server on the wide area network along with the attribute information.
  • the attribute information may include a manufacturer name, a product name, firmware version information of the router.
  • the attribute information transmission means may transmit a product name, a product version, and identification information of the own network communication device to the portal server on the wide area network.
  • the router search means, the attribute information acquisition means, and the router control means may use a protocol defined by UPnP.
  • FIG. 1 is a block diagram illustrating a configuration of an amplification device that constitutes the embodiment of the present invention.
  • An amplification device 100 of this embodiment illustrated in FIG. 1 is an audiovisual amplifier provided with a network communication function, and includes a communication unit 101, a router search unit 102, a router control unit 103, an attribute information acquisition unit 104, an attribute information storage unit 105, an attribute information transmission unit 106, a control unit 107, a web server 108, a display unit 109, an input unit 110, and an amplification unit 111.
  • the communication unit 101 included in the amplification device 100 performs data communications with another network communication device through a network.
  • the router search unit 102 has a discovery function of searching for a device conforming to UPnP on the network, and searches for a router on a local network.
  • the router control unit 103 has a control function of controlling the device conforming to UPnP on the network, and controls the router retrieved by the router search unit 102 to perform a port forwarding setting.
  • the attribute information acquisition unit 104 has a description function of acquiring description information from the device, and acquires the description information from the router retrieved by the router search unit 102.
  • the attribute information storage unit 105 stores attribute information including a manufacturer name, a product name, and firmware version information of a router 300, the attribute information being contained in the description information acquired by the attribute information acquisition unit 104.
  • the attribute information transmission unit 106 transmits the attribute information stored in the attribute information storage unit 105 to a portal server on a wide area network.
  • the control unit 107 centralizes control of the amplification device 100 of this embodiment.
  • the web server 108 allows another network 100 of this embodiment.
  • the web server 108 allows another network communication device (for example, PC) to control the amplification device 100 of this embodiment.
  • the display unit 109 displays an operation menu and a running state of the amplification device 100.
  • the input unit 110 receives a remote control signal transmitted from an operator or an attached remote control that allows a user to operate the amplification device 100.
  • the amplification unit 111 receives an input of an audio signal reproduced from a DVD player or the like, then subjects the input audio signal to a signal processing, and amplifies the audio signal.
  • the amplified audio signal is output to a speaker system (not shown).
  • FIG. 2 is a diagram illustrating a configuration of a remote maintenance system of the amplification device 100.
  • the amplification device 100 is connected to a local network 200 such as an in-house LAN.
  • the local network 200 is connected to a wide area network 400 such as the Internet via the router 300.
  • the router 300 is the device conforming to UPnP.
  • Aportal server 500 is managed by the manufacturer of the amplification device 100, and is connected to the wide area network 400.
  • the portal server 500 includes a database for accumulating the attribute information on the router 300, which is transmitted from the amplification device 100.
  • a terminal device 600 is connected to the wide area network 400, and is a PC or the like that controls the amplification device 100.
  • settings can be made to the amplification device 100 from the PC or the like connected to the local network 200 by using a browser.
  • a service person or the like for the manufacturer of the amplification device 100 can access the web server 108 from the terminal device 600 on the wide area network 400 to thereby perform settings to the amplification device 100.
  • the port forwarding setting is performed on the router 300 in order to allow access from the wide area network 400 to the web server 108 of the amplification device 100 existing on the local network 200.
  • Port forwarding is a function of forwarding a communication packet transmitted to a predetermined port of the router 300 on a wide area network 400 side to a predetermined IP address and port on a local network 200 side. This function allows access from the wide area network 400 to the local network 200, and further allows access from the terminal device 600 to the web server 108 of the amplification device 100.
  • a UPnP protocol is used to automatically set the port forwarding for the router 300 from the amplification device 100 via the local network 200. If the router 300 conforms to UPnP, it is possible to automatically perform the port forwarding setting for the router 300 from the amplification device 100.
  • the amplification device 100 of this embodiment conforms to UPnP, and the router search unit 102, the router control unit 103, and the attribute information acquisition unit 104 each operate according to UPnP.
  • FIG. 3 is a sequence diagram illustrating an operation of the remote maintenance system of the amplification device 100.
  • FIG. 3 is used to describe remote maintenance according to this embodiment in detail.
  • the user operates the attached remote control or the input unit 110 to bring the amplification device 100 into a state that allows the remote maintenance (hereinafter, referred to as "maintenance mode") (Step S1).
  • the router search unit 102 uses the discovery function to transmit an M-SEARCH request to the local network 200 via the communication unit 101 in a broadcast manner (Step S2).
  • an M-SEARCH response is returned to the amplification device 100 from the device.
  • the router 300 on the local network 200 which is the device conforming to UPnP, returns the M-SEARCH response to the amplification device 100 (Step S3).
  • the attribute information acquisition unit 104 uses the description function to transmit a description request to the router 300 via the communication unit 101 (Step S4).
  • the router 300 returns a description response to the amplification device 100 (Step S5).
  • the amplification device 100 stores the attribute information including the manufacturer name, the product name, and the firmware version information of the router 300 into the attribute information storage unit 105, the attribute information being contained in the description information received by means of the description response from the router 300 (Step S6).
  • the router control unit 103 transmits a command to set the port forwarding for the router 300 to the router 300 via the communication unit 101 (Step S7).
  • the router 300 performs the port forwarding setting (Step S8) , and notifies the amplification device 100 of a setting result therefor (Step S9).
  • the attribute information transmission unit 106 transmits the attribute information stored in the attribute information storage unit 105 to the portal server 500 via the communication unit 101 (Step S10).
  • the portal server 500 registers the attribute information received from the amplification device 100 in the database (Step S11).
  • the router 300 is brought into a state in which the communication packet transmitted from the wide area network 400 can be forwarded to the amplification device 100 by the port forwarding setting. Therefore, it is possible to use the browser or the like to access the web server 108 of the amplification device 100 from the terminal device 600 such as the PC or the like used for maintenance which can be connected to the wide area network 400, and hence the service person or the like for the manufacturer of the amplification device 100 can perform various setting works for the amplification device 100 in place of the user.
  • the attribute information transmission unit 106 does not transmit the attribute information on the router 300 for which the setting has been failed. Accordingly, the database of the portal server 500 can be provided as a database of the attribute information on the routers for which the amplification device 100 has succeeded in the port forwarding setting.
  • the attribute information may be transmitted to the portal server 500 with the addition of a flag that indicates the success or failure in the port forwarding setting depending on the notification of the setting result for the port forwarding received from the router 300.
  • the database of the portal server 500 can be provided as the database that allows distinction between the attribute information on the router for which the amplification device 100 has succeeded in the port forwarding setting and the attribute information on the router for which the amplification device 100 has failed in the port forwarding setting.
  • the attribute information transmitted to the portal server 500 contains the firmware version information of the router 300. Therefore, even if there exist a plurality of firmware versions in the same model of router based on updates of firmware for the router, the database of the portal server 500 can be provided as the database that indicates whether or not the amplification device 100 can perform the port forwarding setting for each firmware version for the router.
  • the attribute information transmission unit 106 may be configured to add a model name, a model version, and identification information such as a MAC address of the amplification device 100 to the attribute information to be transmitted to the portal server 500. Accordingly, even in such a case where the manufacturer has released a plurality of models or versions of amplification devices 100, the database of the portal server 500 can be provided as the database that indicates whether or not the port forwarding setting can be performed based on combinations of various amplification devices 100 and routers 300.
  • the manufacturer of the amplification device 100 can reference the database of the portal server 500 to thereby confirm whether or not the port forwarding setting can be performed from the amplification device 100 based on various combinations of the amplification device 100 and the router 300. Accordingly, it is possible to omit a connection test for a combination of the amplification device 100 and the router 300 for which a normal operation has been confirmed from the database of the portal server 500, which can greatly reduce a burden on the manufacturer.
  • the network communication device according to the present invention has been described as the amplification device 100 in the above-mentioned embodiment, but the present invention may also be applied to network equipment which performs the port forwarding setting for the router, such as a remote monitoring camera and an online game machine.
  • the present invention is extremely useful for the network communication device connected to the local network.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Computer And Data Communications (AREA)
  • Small-Scale Networks (AREA)
EP08739159.5A 2007-05-30 2008-03-28 Dispositif de communication en réseau et procédé de communication en réseau Active EP2154830B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007142881A JP2008301011A (ja) 2007-05-30 2007-05-30 ネットワーク通信装置
PCT/JP2008/056035 WO2008146534A1 (fr) 2007-05-30 2008-03-28 Dispositif de communication en réseau et procédé de communication en réseau

Publications (3)

Publication Number Publication Date
EP2154830A1 true EP2154830A1 (fr) 2010-02-17
EP2154830A4 EP2154830A4 (fr) 2013-04-24
EP2154830B1 EP2154830B1 (fr) 2017-02-08

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Application Number Title Priority Date Filing Date
EP08739159.5A Active EP2154830B1 (fr) 2007-05-30 2008-03-28 Dispositif de communication en réseau et procédé de communication en réseau

Country Status (4)

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US (1) US20110116413A1 (fr)
EP (1) EP2154830B1 (fr)
JP (1) JP2008301011A (fr)
WO (1) WO2008146534A1 (fr)

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US9247492B2 (en) 2011-12-29 2016-01-26 Sonos, Inc. Systems and methods for multi-network audio control
US9191699B2 (en) 2011-12-29 2015-11-17 Sonos, Inc. Systems and methods for connecting an audio controller to a hidden audio network
US9521074B2 (en) 2012-05-10 2016-12-13 Sonos, Inc. Methods and apparatus for direct routing between nodes of networks
US9031255B2 (en) 2012-06-15 2015-05-12 Sonos, Inc. Systems, methods, apparatus, and articles of manufacture to provide low-latency audio
US9882995B2 (en) 2012-06-25 2018-01-30 Sonos, Inc. Systems, methods, apparatus, and articles of manufacture to provide automatic wireless configuration
US9715365B2 (en) 2012-06-27 2017-07-25 Sonos, Inc. Systems and methods for mobile music zones
US9306764B2 (en) 2012-06-29 2016-04-05 Sonos, Inc. Dynamic spanning tree root selection
US9179197B2 (en) 2012-10-10 2015-11-03 Sonos, Inc. Methods and apparatus for multicast optimization
US20150095679A1 (en) 2013-09-30 2015-04-02 Sonos, Inc. Transitioning A Networked Playback Device Between Operating Modes
US9298244B2 (en) 2013-09-30 2016-03-29 Sonos, Inc. Communication routes based on low power operation
US9456037B2 (en) 2013-09-30 2016-09-27 Sonos, Inc. Identifying a useful wired connection
US10031742B2 (en) 2015-09-30 2018-07-24 International Business Machines Corporation Upgrade of firmware in an interface hardware of a device in association with the upgrade of driver software for the device
US10031741B2 (en) 2015-09-30 2018-07-24 International Business Machines Corporation Upgrade of port firmware and driver software for a target device
US10013386B2 (en) 2015-09-30 2018-07-03 International Business Machines Corporation Preservation of port control block information related to logins and states of remote ports during a code load in an embedded port

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Also Published As

Publication number Publication date
EP2154830B1 (fr) 2017-02-08
WO2008146534A1 (fr) 2008-12-04
JP2008301011A (ja) 2008-12-11
US20110116413A1 (en) 2011-05-19
EP2154830A4 (fr) 2013-04-24

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